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@@ -33,10 +33,22 @@
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#ifdef EGL_ENABLED
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#if defined(EGL_STATIC)
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-#define KHRONOS_STATIC 1
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+
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#define GLAD_EGL_VERSION_1_5 true
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+
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+#ifdef EGL_EXT_platform_base
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+#define GLAD_EGL_EXT_platform_base 1
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+#endif
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+
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+#define KHRONOS_STATIC 1
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extern "C" EGLAPI void EGLAPIENTRY eglSetBlobCacheFuncsANDROID(EGLDisplay dpy, EGLSetBlobFuncANDROID set, EGLGetBlobFuncANDROID get);
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+extern "C" EGLAPI EGLDisplay EGLAPIENTRY eglGetPlatformDisplayEXT(EGLenum platform, void *native_display, const EGLint *attrib_list);
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#undef KHRONOS_STATIC
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+
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+#endif // defined(EGL_STATIC)
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+
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+#ifndef EGL_EXT_platform_base
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+#define GLAD_EGL_EXT_platform_base 0
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#endif
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// Creates and caches a GLDisplay. Returns -1 on error.
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@@ -56,10 +68,23 @@ int EGLManager::_get_gldisplay_id(void *p_display) {
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if (GLAD_EGL_VERSION_1_5) {
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Vector<EGLAttrib> attribs = _get_platform_display_attributes();
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new_gldisplay.egl_display = eglGetPlatformDisplay(_get_platform_extension_enum(), new_gldisplay.display, (attribs.size() > 0) ? attribs.ptr() : nullptr);
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+ } else if (GLAD_EGL_EXT_platform_base) {
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+#ifdef EGL_EXT_platform_base
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+ // eglGetPlatformDisplayEXT wants its attributes as EGLint, so we'll truncate
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+ // what we already have. It's a bit naughty but I'm really not sure what else
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+ // we could do here.
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+ Vector<EGLint> attribs;
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+ for (const EGLAttrib &attrib : _get_platform_display_attributes()) {
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+ attribs.push_back((EGLint)attrib);
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+ }
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+
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+ new_gldisplay.egl_display = eglGetPlatformDisplayEXT(_get_platform_extension_enum(), new_gldisplay.display, (attribs.size() > 0) ? attribs.ptr() : nullptr);
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+#endif // EGL_EXT_platform_base
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} else {
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NativeDisplayType *native_display_type = (NativeDisplayType *)new_gldisplay.display;
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new_gldisplay.egl_display = eglGetDisplay(*native_display_type);
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}
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+
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ERR_FAIL_COND_V(eglGetError() != EGL_SUCCESS, -1);
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ERR_FAIL_COND_V_MSG(new_gldisplay.egl_display == EGL_NO_DISPLAY, -1, "Can't create an EGL display.");
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@@ -326,30 +351,51 @@ EGLContext EGLManager::get_context(DisplayServer::WindowID p_window_id) {
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return display.egl_context;
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}
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-Error EGLManager::initialize() {
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+Error EGLManager::initialize(void *p_native_display) {
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#if defined(GLAD_ENABLED) && !defined(EGL_STATIC)
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- // Passing a null display loads just the bare minimum to create one. We'll have
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- // to create a temporary test display and reload EGL with it to get a good idea
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- // of what version is supported on this machine. Currently we're looking for
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- // 1.5, the latest at the time of writing, which is actually pretty old.
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- if (!gladLoaderLoadEGL(nullptr)) {
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+ // Loading EGL with a new display gets us just the bare minimum API. We'll then
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+ // have to temporarily get a proper display and reload EGL once again to
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+ // initialize everything else.
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+ if (!gladLoaderLoadEGL(EGL_NO_DISPLAY)) {
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ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "Can't load EGL.");
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}
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- // NOTE: EGL_DEFAULT_DISPLAY returns whatever the O.S. deems suitable. I have
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- // no idea if this may cause problems with multiple display servers and if we
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- // should handle different EGL contexts in another way.
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- EGLDisplay tmp_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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- ERR_FAIL_COND_V(tmp_display == EGL_NO_DISPLAY, ERR_UNAVAILABLE);
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+ EGLDisplay tmp_display = EGL_NO_DISPLAY;
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+
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+ if (GLAD_EGL_EXT_platform_base) {
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+#ifdef EGL_EXT_platform_base
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+ // eglGetPlatformDisplayEXT wants its attributes as EGLint.
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+ Vector<EGLint> attribs;
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+ for (const EGLAttrib &attrib : _get_platform_display_attributes()) {
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+ attribs.push_back((EGLint)attrib);
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+ }
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+ tmp_display = eglGetPlatformDisplayEXT(_get_platform_extension_enum(), p_native_display, attribs.ptr());
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+#endif // EGL_EXT_platform_base
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+ } else {
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+ WARN_PRINT("EGL: EGL_EXT_platform_base not found during init, using default platform.");
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+ EGLNativeDisplayType *native_display_type = (EGLNativeDisplayType *)p_native_display;
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+ tmp_display = eglGetDisplay(*native_display_type);
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+ }
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+
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+ if (tmp_display == EGL_NO_DISPLAY) {
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+ eglTerminate(tmp_display);
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+ ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "Can't get a valid initial EGL display.");
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+ }
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eglInitialize(tmp_display, nullptr, nullptr);
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int version = gladLoaderLoadEGL(tmp_display);
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+ if (!version) {
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+ eglTerminate(tmp_display);
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+ ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "Can't load EGL.");
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+ }
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+
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+ int major = GLAD_VERSION_MAJOR(version);
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+ int minor = GLAD_VERSION_MINOR(version);
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- ERR_FAIL_COND_V_MSG(!version, ERR_UNAVAILABLE, "Can't load EGL.");
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- print_verbose(vformat("Loaded EGL %d.%d", GLAD_VERSION_MAJOR(version), GLAD_VERSION_MINOR(version)));
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+ print_verbose(vformat("Loaded EGL %d.%d", major, minor));
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- ERR_FAIL_COND_V_MSG(!GLAD_EGL_VERSION_1_4, ERR_UNAVAILABLE, "EGL version is too old!");
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+ ERR_FAIL_COND_V_MSG(!GLAD_EGL_VERSION_1_4, ERR_UNAVAILABLE, vformat("EGL version is too old! %d.%d < 1.4", major, minor));
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eglTerminate(tmp_display);
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#endif
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@@ -378,13 +424,14 @@ Error EGLManager::initialize() {
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}
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#endif
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- String extensions_string = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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- // The above method should always work. If it doesn't, something's very wrong.
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- ERR_FAIL_COND_V(eglGetError() != EGL_SUCCESS, ERR_BUG);
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+ String client_extensions_string = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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- const char *platform = _get_platform_extension_name();
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- if (!extensions_string.split(" ").has(platform)) {
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- ERR_FAIL_V_MSG(ERR_UNAVAILABLE, vformat("EGL platform extension \"%s\" not found.", platform));
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+ // If the above method fails, we don't support client extensions, so there's nothing to check.
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+ if (eglGetError() == EGL_SUCCESS) {
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+ const char *platform = _get_platform_extension_name();
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+ if (!client_extensions_string.split(" ").has(platform)) {
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+ ERR_FAIL_V_MSG(ERR_UNAVAILABLE, vformat("EGL platform extension \"%s\" not found.", platform));
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+ }
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}
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return OK;
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